The GW Instek GPM-8330 GPIB/DA12 is a three channel digital power meter designed specifically for measuring power in three-phase AC power sources, making it suitable for most electrical and electronic product testing applications. The GPM-8330 provides 3 modules. The GPM-8330 GPIB/DA12 has a testing bandwidth of DC, 0.1Hz-100 kHz and features 16-bit A/D converters and a sampling rate of 300 kHz. A 5-inch TFT LCD display, 5 digits of measurement readings, 25 different power measurement parameters, and high precision measurement capabilities are also provided.

The GPM-8330 GPIB/DA12 also features waveform display capabilities (voltage/current/power), the integration measurement function, harmonics measurement and analysis of multiple orders (50/60Hz measurement complies with IEC61000-4-7 requirements), external sensor input terminals, and a variety of communications interfaces. These features help users achieve clear, convenient, and accurate power measurements, making them the most fully-featured and cost-effective power meters in the same category.

The GPM-8330 GPIB/DA12 provides multiple input voltage configuration wiring modes (1P3W/3P3W/3P4W/3V3A). Users can choose the wiring mode according to their specific requirements to measure parameters for specific wiring methods, and even calculate efficiency. In addition, for a rated input voltage of 1000V and an input current of 20A, they support a minimum current range of 0.5A (resolution of 0.1mA), power measurement resolution of 0.1mW, crest factor of 3 (for half range, the CF can reach up to 6 or 6A), and voltage/current/power measurement accuracy of ±0.1% reading ±0.05% range. Users can select different measurement modes (AC+DC/ AC/ DC/ V-MEAN) to provide up to 25 related parameters for power measurement.

These parameters include voltage (Vrms/ Vac/ Vdc/ Vmn/ V+pk / V-pk), current (Irms/ Iac/ Idc/ I+pk/ I-pk), frequency (VHz/ IHz), power (P/ P+pk/ P-pk), crest factor (CFV/ CFI), apparent power (VA), reactive power (VAR), power factor (PF), phase angle (DEG), total harmonic distortion (THDV/ THDI), maximum current ratio (MCR), and MATH calculation function. Therefore, they provide the best range and accuracy support for measuring the power consumption of electrical and electronic products.

The GPM-8330 GPIB/DA12 offers a comprehensive and diverse set of communications interfaces, including RS-232/USB/LAN/GPIB, suitable for users to remotely control and collect measurement results through command sets to program computer software. The included Digital I/O (DA12) interface provides three different modes according to users settings: including external control, DA12 output, and self-defined output. When the setting is external control mode, users can activate, stop, trigger, or reset the integration measurement function through external signals. When it is set to DA12 output mode, users can define 12 measurement parameter values from the provided 17 measurement parameters (even the result of integration measurement) to output in a fixed range (full scale +5V) or manual range (full scale 5V) and receive ± the results in collocation with a data recorder. When it is set to custom output mode, it needs to be used with a communications interface, and the action of each defined pin is controlled through commands.